package hello;

public class Case2 {
    private static Integer age = 10;

    public static void add() {
        String name = "zk";
        System.out.println(name);
    }

    public void one() {
        String first = "one";
        System.out.println(first);
    }

    public static void main(String[] args) {
        Case2.add();
        Case2 cc = new Case2();
        cc.one();
        System.out.println("age=" + age);
        //System.out.println("name=" + name);
        int a = 1;
        int b = 2;
        System.out.println("a+b=" + a + b);
    }
}
